A vehicle for use in hospitals, and the like, giving better mobility, steering, braking and passenger handling while providing comfort to the passengers from the time they lay down until they are standing on the side through the rotation and tilting ability of the frame.
|
16. A hospital bed, comprising:
a patient sleep surface support having back, seat and foot sections, wherein the seat section comprises first and second opposing longitudinally spaced apart end portions, the first end portion residing proximate the back section and the second end portion residing proximate the foot section;
a four way equal platform tilting mechanism comprising a platform holding a rotating plate, the rotating plate residing under the seat section and holding an upwardly extending tilt mount that holds a single laterally extending main support bar that resides over the plate and is attached to an underside of the patient sleep surface support proximate the seat section; and
a lifting mechanism attached to and residing under the platform of the four way equal platform tilting mechanism, aligned with the rotating plate, to be able to concurrently lift the back, seat and foot sections of the patient sleep surface support;
wherein the rotating plate is configured to rotate the patient sleep surface support from a longitudinal normal orientation to a side egress orientation, whereby the lifting mechanism and the four way equal platform tilting mechanism cooperate to move the patient sleep surface support to a side standing egress position where the seat section is tilted down so that the second end portion resides below the first end portion and the back and foot sections are substantially upright.
1. A hospital bed, comprising:
a patient sleep surface support having back, seat and foot sections, wherein the seat section comprises first and second opposing longitudinally spaced apart end portions, the first end portion residing proximate the back section and the second end portion residing proximate the foot section;
a platform tilting mechanism attached to an underside of the patient sleep surface support proximate the seat section, the platform tilting mechanism comprising a rotating plate that resides below the seat section, wherein the rotating plate has a perimeter that is slidably supported by the platform tilting mechanism, and wherein the rotating plate has a vertically extending axis of rotation; and
a lifting mechanism attached to and residing under the platform tilting mechanism to be able to lift and lower the rotating plate to respectively lift and lower the patient sleep surface support;
wherein the rotating plate is configured to rotate the patient sleep surface support from a longitudinal bed orientation to a side egress orientation, and wherein the lifting mechanism and the platform tilting mechanism cooperate to move the patient sleep surface support to a side standing egress position with the seat section tilted down so that the second end portion of the seat section resides below the first end portion of the seat section, the back section extends substantially upward above the seat section, and the foot section resides below the seat section.
15. A hospital bed, comprising:
a patient sleep surface support having back, seat and foot sections, wherein the seat section comprises first and second opposing longitudinally spaced apart end portions, the first end portion residing proximate the back section and the second end portion residing proximate the foot section;
a four way equal platform tilting mechanism attached to an underside of the patient sleep surface support proximate the seat section, the four way equal platform tilting mechanism comprising a rotating plate having a perimeter that is slidably supported by the four way equal platform; and
a lifting mechanism attached to and residing under the four way equal platform tilting mechanism to be able to concurrently lift the back, seat, and foot sections of the patient sleep surface support;
wherein the rotating plate is circular and resides under the seat section and supports a single laterally extending main support bar that resides a distance above the rotating plate, the main support bar being attached to an underside of the seat section primary, and wherein the rotating plate is configured to rotate the patient sleep surface support from a longitudinal normal orientation to a side egress orientation, whereby the lifting mechanism and the four way equal platform tilting mechanism cooperate to move the patient sleep surface support to a side standing egress position where the seat section is tilted down so that the second end portion resides below the first end portion and the back and foot sections are substantially upright.
9. A hospital bed, comprising:
a patient sleep surface support having back, seat and foot sections, wherein the seat section comprises first and second opposing longitudinally spaced apart end portions, the first end portion residing proximate the back section and the second end portion residing proximate the foot section;
a platform tilting mechanism attached to an underside of the patient sleep surface support proximate the seat section, the platform tilting mechanism comprising a rotating plate that resides below the seat section; and
a lifting mechanism attached to and residing under the platform tilting mechanism to be able to lift the patient sleep surface support,
wherein the rotating plate is configured to rotate the patient sleep surface support from a longitudinal bed orientation to a side egress orientation, and wherein the lifting mechanism and the platform tilting mechanism cooperate to move the patient sleep surface support to a side standing egress position with the seat section tilted down so that the second end portion of the seat section resides below the first end portion of the seat section and the back section extends substantially upward above the seat section, and
wherein the rotating plate supports a tilt bar mount that resides directly above the rotating plate, wherein the tilt bar mount is attached to a laterally extending main support bar that resides directly above the rotating plate and is attached to a seat section frame, and wherein the lifting mechanism resides under the tilt bar mount and beneath the rotating plate and is configured to lift the back, seat and foot sections concurrently.
18. A hospital chair bed, comprising:
a patient sleep surface support having back, seat and foot sections, wherein the seat section comprises first and second opposing longitudinally spaced apart end portions, the first end portion residing proximate the back section and the second end portion residing proximate the foot section;
a platform attached to an underside of the patient sleep surface support proximate the seat section, the platform comprising a rotating plate that resides below the seat section, wherein the rotating plate has a circular shape with a perimeter that is slidably supported by the platform, and wherein the rotating plate has a vertically extending axis of rotation that allows for the patient sleep surface to be able to rotate 90 degrees to either a right hand or left hand side of a longitudinal hospital bed orientation to provide for right and left side egress orientations;
a lock configured to releasably engage the rotating plate to lock the patient sleep surface support in a right or left side egress orientation; and
a lifting mechanism attached to and residing under the platform to be able to lift and lower the platform with the rotating plate to respectively lift and lower the patient sleep surface support;
wherein the lifting mechanism and the platform with the rotating plate cooperate to move the patient sleep surface support to a side standing egress position with the seat section tilted down so that the second end portion of the seat section resides below the first end portion of the seat section, the back section extends substantially upward above the seat section, and the foot section resides below the seat section.
8. A hospital bed, comprising:
a patient sleep surface support having back, seat and foot sections, wherein the seat section comprises first and second opposing longitudinally spaced apart end portions, the first end portion residing proximate the back section and the second end portion residing proximate the foot section;
a platform tilting mechanism attached to an underside of the patient sleep surface support proximate the seat section, the platform tilting mechanism comprising a rotating plate that resides below the seat section; and
a lifting mechanism attached to and residing under the platform tilting mechanism to be able to lift the patient sleep surface support;
wherein the rotating plate is configured to rotate the patient sleep surface support from a longitudinal bed orientation to a side egress orientation, and wherein the lifting mechanism and the platform tilting mechanism cooperate to move the patient sleep surface support to a side standing egress position with the seat section tilted down so that the second end portion of the seat section resides below the first end portion of the seat section and the back section extends substantially upward above the seat section, and
wherein the platform tilting mechanism includes a tilt bar mount that resides on a flat upper surface of the rotating plate, the tilt bar mount having an upwardly extending triangular shape when viewed from the side with an upper peak portion of the triangular shape residing above the plate and being attached to a laterally extending main support rod, and wherein the laterally extending main support rod attaches to and resides directly under an underside of a seat section frame of the sleep surface support and directly above a portion of the rotating plate.
10. A hospital bed, comprising:
a patient sleep surface support having back, seat and foot sections, wherein the seat section comprises first and second opposing longitudinally spaced apart end portions, the first end portion residing proximate the back section and the second end portion residing proximate the foot section;
a platform tilting mechanism attached to an underside of the patient sleep surface support proximate the seat section, the platform tilting mechanism comprising a rotating plate that resides below the seat section;
a lifting mechanism attached to and residing under the platform tilting mechanism to be able to lift the patient sleep surface support;
wherein the rotating plate is configured to rotate the patient sleep surface support from a longitudinal bed orientation to a side egress orientation, and wherein the lifting mechanism and the platform tilting mechanism cooperate to move the patient sleep surface support to a side standing egress position with the seat section tilted down so that the second end portion of the seat section resides below the first end portion of the seat section and the back section extends substantially upward above the seat section; and
wherein the rotating plate supports a tilt bar mount that resides directly above the plate and is attached to a single laterally extending main support rod that resides above the plate, wherein the main support rod is attached to an underside of a seat section frame directly above a portion of the plate, and wherein the laterally extending main support rod is rotatably attached to the tilt bar mount and is configured to cooperate with the lifting mechanism and the platform titling mechanism to be able to concurrently lift the back, seat and foot sections of the bed.
13. A hospital bed, comprising:
a patient sleep surface support having back, seat and foot sections, wherein the seat section comprises first and second opposing longitudinally spaced apart end portions, the first end portion residing proximate the back section and the second end portion residing proximate the foot section;
a platform tilting mechanism attached to an underside of the patient sleep surface support proximate the seat section, the platform tilting mechanism comprising a rotating plate that resides below the seat section;
a lifting mechanism attached to and residing under the platform tilting mechanism to be able to lift the patient sleep surface support;
wherein the rotating plate is configured to rotate the patient sleep surface support from a longitudinal bed orientation to a side egress orientation, and wherein the lifting mechanism and the platform tilting mechanism cooperate to move the patient sleep surface support to a side standing egress position with the seat section tilted down so that the second end portion of the seat section resides below the first end portion of the seat section and the back section extends substantially upward above the seat section; and
a pair of side rails attached to opposing sides of the foot section, wherein the side rails are configured to reside above and one along each long side of the patient sleep surface when the bed is in the longitudinal orientation, wherein the side rails translate with the foot section of the patient sleep surface and tilt to reside upwardly in the side chair and side egress stand positions with an upper portion of the side rails residing above the foot section and with a lower portion of the side rails residing below the upper portion of the side rails facing a floor.
2. The hospital bed of
3. The hospital bed of
4. The hospital bed of
5. The hospital bed of
6. The hospital bed of
7. The hospital bed of
11. The hospital bed of
12. The hospital bed of
14. The hospital bed of
19. The hospital bed of
20. The hospital bed of
|
This application is a continuation of U.S. patent application Ser. No. 11/398,098, filed Apr. 5, 2006, now U.S. Pat. No. 7,788,748 which claims priority to U.S. Provisional Application Ser. No. 60/668,859, filed Apr. 6, 2005, the contents of which are hereby incorporated by reference as if recited in full herein.
The present invention relates to beds for use in hospitals, nursing homes or residential homes.
Embodiments of the present invention are directed to beds with rotating sleep surfaces that can be configured to sit into a chair and also may stand a patient up like a lift chair on the side of the bed.
The present invention includes 8″ casters for specific ease of steering.
The present invention includes a braking system operated by hydraulics whereby the casters may be locked and released with one cylinder. Components of the braking system thereof are strategically located inside the bottom frame rails.
The present invention includes a steering system that is spring loaded to the floor and lifted with a hydraulic cylinder.
The present invention includes a twin scissor mechanism actuated by a cylinder with a cylinder extension so that the mechanism may operate at full extension in a confined space.
The present invention includes a rotating sleep surface mounted to the center frame at the top of the scissors allowing operating rotation of 360 degrees.
The present invention includes a mounted platform system attaching to the rotating sleep surface that allows the upper frame to tilt around the four-way platform at optimal degrees of tilt.
The present invention includes arm rails that are mounted to the main frame operated by pin or latch release to allow straight in and out movement. The rail is spring loaded and will automatically release when the pin or latch is activated. The up/down feature will stop at designated points along the back of the rack and is controlled by a rack and pinion guide system.
The present invention includes side egress chair capabilities allowing the entire sleep surface to rotate 360 degrees left or right of center and can transition to a seated position at 90 degrees left or right of center. This side egress chair position is locked at 90 degrees, 180 degrees and 270 degrees.
The present invention includes side egress lift chair allowing the patient to transition from a suspended comfort position to a chair position to a gentle walkout exit position. Walkout exits are obtainable at 90 degrees and 270 degrees.
The present invention allows 30 degree tilt which is easily achieved by main frame proximity to the floor when the scissors are raised to a predetermined height.
The present invention will be described hereafter with reference to the attached drawings that are given as non-limiting examples.
PCV Braking Mechanism
The casters are mounted to the four corners of the bed into square tubes. The tubes are drilled to allow for set screws in each caster and to slide a full length hex rod through the head of the caster to lock the brakes. The hex rod is put through the short 1 by 3 inch frame tube on both ends of the bed. A clevis is mounted to one end of each of the hex rods. The drive shaft bar is mounted to the clevis on each end. The drive shaft bar runs through the long 1 by 3 tube. There is a slot cut into the side of the long tube to connect the hydraulic cylinder to the drive shaft bar. When activated the cylinder rocks the clevis, the clevis rotates the hex rod and locks or unlocks the brakes on all 4 of the casters.
PCV Steering Mechanism
The steering mechanism is mounted to the frame with 3 metal square tubes that are welded to the main base frame. There are holes in the cross section of tube to mount the spring loaded rods to and put the threaded hydraulic cylinder through. The spring loaded rods are attached to the bar the casters are mounted to so the springs keep them on the floor. There is a bar that connects above the square tube to the spring loaded bars to make sure they stay straight up and down. It is the same bar that the hydraulic head pushes on to lift the casters off of the ground. This keeps the casters on the floor until the bed needs to be moved side to side when the cylinder will raise them. This mechanism allowed us to push the bed 60 feet in a straight line by itself.
Twin Scissor Lift Mechanism
The scissor mechanism has 8 scissor arms mounted with welds and washers between them to 6 cross structural support rods, 1 cross structural support bar and 1 cross structural support tube. The cross structural support tube has 2 clevis arms 79 welded to it and a custom designed cylinder extension 75 mounted to clevis arms 79 with bushing and washers so the extension 75 will pivot. The bottom of the cylinder is mounted with a screw to the top of the cross structural support bar and the top of the cylinder is attached with threads to the inside of the cylinder extension block 75. This allows a larger cylinder to fit in a smaller space and get full range of motion. The top of the scissor is mounted to the bottom of the main lift surface (50,
Rotating Surface Mechanism
The main lift surface 50 is made of 4 pieces of angle iron cut on a 45 degree angle and welded together to form four 90 degree angles. This makes the main frame 50 where everything else is attached. The flat side of the frame is on top and the wall side is faced down to the bottom. There are 2 channel tracks mounted with a weld to the bottom of the frame for the 2 scissor lift wheels to run in and 2 brackets welded to the bottom on the opposite side to make the scissor track straight up and down. The top of the surface has a custom cut round aluminum plate 40 mounted to the center. The mounts are made of steel and nylon. The bottom steel mounting brackets are welded to the frame to lock them in place and keep the round plate from moving. There are 4 custom cut nylon pieces that fit on the top and bottom of the round plate 40 inside of metal mounts for the round plate to ride on. There are 4 top metal pieces of the mount that screw into the frame top to lock the metal and nylon in place. These mounts cause the round plate 40 to make a smooth 360 degree movement. The top of the round plate has 2 pieces of channel custom cut and screwed to it to mount 2 bearings 60 and allow the sleep surface to tilt. The bearings are screwed to the top of the channel to mount the main support rod (20,
Four Way Equal Platform Tilting Mechanism
Arm Rail Mechanism
The 2 frame rods are mounted through 2 holes in the sleep surface frame. The housing made of custom bent steel is mounted with screws or welded on the inside of the rail with 2 holes to house the gears and be the second guide for the 2 frame rods with bushings or washers on both sides. The frame rods are keyed to make the gears stay with the frame rods and spring loaded to push them out when they are released with the latch or manually pulled out. The custom made steel swing arms that move the rails low to high are welded to the frame rods on the outside of the bed. The glide mount rods are welded to the swing arms where there is a bushing inserted over the glide rods. The custom made glide blocks are mounted on top of the bushings with a washer on the inside and held on by snap rings on the outside. There are 2 holes in the glide blocks to mount the 2 glide slide rods though. A rack rod is mounted with the teeth facing up to the right guide block and a rack rod is mounted with the teeth facing down to the left guide block. The pinion gear is mounted in the center of the slide rods with the racks keyed into it to make sure the glide blocks move evenly in and out which causes the arm rail to travel straight up and down. The pinion is held in the center of the glide rods by a nylon mounting bracket that is screwed to the glide rods. The latch that holds the rail in any position is mounted through the top of the nylon mounting bracket stops the rails motion by hitting detent slots in the top of the upper rack.
Drawing legend:
Comfort Side Chair Egress Mechanism
Comfort Side Standing Egress Mechanism
PCV Tilt Mechanism
Manual Retracting and Extending Foot Section Mechanism
Patent | Priority | Assignee | Title |
10813806, | May 24 2016 | Stryker Corporation | Medical support apparatus with stand assistance |
10898008, | Jul 26 2016 | PPJ, LLC | Adjustable bed systems with rotating articulating bed frame |
10918550, | Jul 26 2016 | PPJ, LLC | Adjustable bed systems with rotating articulating bed frame |
10932974, | Jul 26 2016 | PPJ, LLC | Adjustable bed systems with rotating articulating bed frame |
11020295, | Dec 22 2015 | Stryker Corporation | Patient support systems and methods for assisting caregivers with patient care |
9603764, | Feb 11 2014 | Medline Industries, LP | Method and apparatus for a locking caster |
Patent | Priority | Assignee | Title |
3053568, | |||
3112500, | |||
3239853, | |||
3304116, | |||
3428307, | |||
3503082, | |||
3526008, | |||
4038709, | Dec 24 1975 | Kerwit Medical Products, Inc. | Dual hydraulic hospital bed |
4084274, | Apr 21 1976 | Betstone Industries Limited | Turning bed |
4183109, | Apr 21 1978 | Sectional bed | |
4439880, | Sep 18 1980 | J G FURNITURE GROUP, INC ; J G FURNITURE GROUP, INC | Geriatric bed construction with sideguards |
4453766, | Apr 05 1982 | Lift chair for disabled person | |
4489449, | Feb 06 1981 | JACKSON NATIONAL LIFE INSURANCE COMPANY, AS HOLDER OF SUBORDINATED SECURED OBLIGATIONS | Trauma care wheeled stretcher |
4592104, | Dec 06 1983 | Hill-Rom Company, Inc.; HILL-ROM COMPANY, INC , BATESVILLE, IN 47006 AN IN CORP | Hospital bed |
4847929, | Dec 04 1987 | Bed with adjustable positions | |
4862529, | Jul 13 1988 | Hill-Rom Services, Inc | Hospital bed convertible to chair |
4926457, | Jan 29 1988 | Hill-Rom Services, Inc | Radiolucent hospital bed surface |
5014391, | Jan 13 1989 | Lockable caster wheel | |
5072463, | Apr 11 1991 | ROACHE, WILLIAM E | EZ access bed |
5083625, | Jul 02 1990 | Powdered maneuverable hospital cart | |
5095561, | May 09 1991 | Invalid bed | |
5230113, | Apr 14 1992 | GOOD TURN, INCORPORATED | Multiple position adjustable day night patient bed chair |
5348326, | Mar 02 1993 | Hill-Rom Services, Inc | Carrier with deployable center wheels |
5444883, | Jun 26 1989 | Rotary, invalid bed | |
5613254, | Dec 02 1994 | Mizuho Orthopedic Systems, Inc | Radiolucent table for supporting patients during medical procedures |
5715548, | Jan 25 1994 | Hill-Rom Services, Inc | Chair bed |
5732423, | Aug 04 1995 | Hill-Rom Services, Inc | Bed side rails |
5806111, | Apr 12 1996 | Hill-Rom Services, Inc | Stretcher controls |
5906016, | Mar 23 1988 | Hill-Rom Services, Inc | Patient care system |
6003174, | Sep 03 1997 | SCHAERER MEDICAL USA, INC | Radiolucent table extension and method |
6058531, | May 23 1997 | CARROLL HEALTHCARE L P | Dual-position assist and guard rail for beds |
6178575, | Oct 09 1998 | S. N. Seiki Co., Ltd.; Kyowa Denko Co., Ltd. | Stretcher mounting unit |
6182310, | Aug 04 1995 | Hill-Rom Services, Inc | Bed side rails |
6256812, | Jan 15 1999 | Stryker Corporation | Wheeled carriage having auxiliary wheel spaced from center of gravity of wheeled base and cam apparatus controlling deployment of auxiliary wheel and deployable side rails for the wheeled carriage |
6289536, | Dec 06 1995 | Apparatus for handling incapacitated patients | |
6315319, | Feb 10 1997 | Hill-Rom Services, Inc | Ambulatory care chair |
6321878, | Mar 05 1999 | Hill-Rom Services, Inc | Caster and braking system |
6357065, | Nov 15 1999 | ANKURA TRUST COMPANY, LLC | Variable width bariatric modularbed |
6421854, | Feb 18 2000 | Hill-Rom Services, Inc | Imaging stretcher |
6473921, | Dec 03 1996 | Hill-Rom Services, Inc. | Brake assembly for a bed |
6505365, | Dec 11 1998 | Hill-Rom Services, Inc | Hospital bed mechanisms |
6566833, | Mar 29 2001 | Huntleigh Technology Limited | Prone positioning therapeutic bed |
6601251, | May 30 2000 | Height adjustable medical bed including intermediate upper and lower stop positions | |
6611979, | Sep 23 1997 | Hill-Rom Services, Inc | Mattress having a retractable foot section |
6615430, | Feb 18 2000 | Hill-Rom Services, Inc. | Imaging stretcher |
6640360, | Mar 17 2000 | Hill-Rom Services, Inc. | Bed siderail |
6658680, | Dec 29 1999 | Hill-Rom Services, Inc | Hospital bed |
6675415, | Mar 29 2001 | WILLIAM BEAUMONT HOSPITAL | X-ray transparent hospital bed compatible with open geometry portable CT scanners |
6694549, | Apr 20 2001 | Hill-Rom Services, Inc. | Bed frame with reduced-shear pivot |
6701554, | Feb 18 2000 | Hill-Rom Services, Inc. | Imaging stretcher with pivotable armboards, and handles, positioned over wheel assemblies |
6708358, | Apr 22 1998 | Hill-Rom Services, Inc. | Articulating bed frame |
6779209, | Dec 29 2000 | Hill-Rom Services, Inc | Bed siderail apparatus |
6880186, | Aug 25 2000 | Arrangement in a bed for a disabled person, and a bed provided with the said arrangement | |
6880189, | Dec 29 1999 | Hill-Rom Services, Inc. | Patient support |
6957461, | Dec 29 1999 | Hill-Rom Services, Inc. | Hospital bed |
7017208, | Aug 04 1995 | Hill-Rom Services, Inc. | Hospital bed |
7062805, | Sep 17 2003 | Stryker Corporation | Pedal control of brake and auxiliary wheel deployment via side and end articulation |
7073220, | Sep 06 2002 | Hill-Rom Services, Inc.; Hill-Rom Services, Inc | Bed siderail having a latch |
7086103, | Jan 08 2002 | Rotating bed with improved stability | |
7086107, | Aug 04 1995 | Hill-Rom Services, Inc. | Mattress section support |
7191482, | May 06 1998 | Hill Rom Services, Inc. | Patient support |
7213279, | Aug 04 1995 | Hospital bed and mattress having extendable foot section | |
7216378, | Apr 02 2004 | Hill-Rom Services, Inc. | Patient removal system |
7234178, | Jul 18 2003 | Electromotive bed | |
7296312, | Sep 06 2002 | Hill-Rom Services, Inc | Hospital bed |
7343916, | Jul 14 2000 | Hill-Rom Services, Inc. | Pulmonary therapy apparatus |
7373677, | Oct 25 2002 | Rotary bed comprising an improved rotary hinge | |
7395567, | Nov 06 2006 | Sheet retention system | |
7406731, | Sep 06 2002 | Holl-Rom Services, Inc. | Hospital bed |
7443302, | May 05 2000 | Hill-Rom Services, Inc. | Caregiver and equipment monitoring and control system |
7454805, | Dec 29 1999 | Hill-Rom Services, Inc. | Hospital bed |
7472439, | Feb 23 2005 | Stryker Corporation | Hospital patient support |
7676862, | Sep 13 2004 | KREG MEDICAL, INC | Siderail for hospital bed |
20040064886, | |||
20040158923, | |||
20060179571, | |||
20060195984, |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jul 29 2010 | Piedmont Global Solutions, Inc. | (assignment on the face of the patent) | / | |||
Dec 20 2012 | PIEDMONT GLOBAL SOLUTIONS, INC | Piedmont 361, LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 029515 | /0824 | |
Jul 30 2019 | Piedmont 361, LLC | RESOLUTION BED, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 050695 | /0895 |
Date | Maintenance Fee Events |
Jan 19 2015 | M2551: Payment of Maintenance Fee, 4th Yr, Small Entity. |
Mar 11 2019 | REM: Maintenance Fee Reminder Mailed. |
Jul 12 2019 | M2552: Payment of Maintenance Fee, 8th Yr, Small Entity. |
Jul 12 2019 | M2555: 7.5 yr surcharge - late pmt w/in 6 mo, Small Entity. |
Jan 06 2023 | M2553: Payment of Maintenance Fee, 12th Yr, Small Entity. |
Date | Maintenance Schedule |
Jul 19 2014 | 4 years fee payment window open |
Jan 19 2015 | 6 months grace period start (w surcharge) |
Jul 19 2015 | patent expiry (for year 4) |
Jul 19 2017 | 2 years to revive unintentionally abandoned end. (for year 4) |
Jul 19 2018 | 8 years fee payment window open |
Jan 19 2019 | 6 months grace period start (w surcharge) |
Jul 19 2019 | patent expiry (for year 8) |
Jul 19 2021 | 2 years to revive unintentionally abandoned end. (for year 8) |
Jul 19 2022 | 12 years fee payment window open |
Jan 19 2023 | 6 months grace period start (w surcharge) |
Jul 19 2023 | patent expiry (for year 12) |
Jul 19 2025 | 2 years to revive unintentionally abandoned end. (for year 12) |